Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc p0303 cylinder 3 misfire detected

Dtc p0304 cylinder 4 misfire detected

DTC DETECTING CONDITION:• Detected when two consecutive driving cycles with fault occur.• Immediately at fault recognition (A misfire which could damage catalyst occurs.)TROUBLE SYMPTOM:&b ...

Dtc p0302 cylinder 2 misfire detected

NOTE:For the diagnostic procedure, refer to DTC P0304. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0304 CYLINDER 4 MISFIRE DETECTED1. OUTLINE OF DIAGNOSISNOTE:For the detection sta ...

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Inspection
1. CHECK SWITCHING VALVE1. Check the resistance between switching valve terminals.Terminal No.Standard1 and 527+3 −2 - (when 20°C (68°F))31±4 - (60°C (140°F))2. Check that air is discharged from (B) when air is blown into (A).3. Connect the battery positive termina ...